Can genes explain why some gums flare up faster?

NCT ID NCT05656417

Completed Knowledge-focused Sponsor: King's College London Source: ClinicalTrials.gov ↗

First seen Aug 07, 2026 · Last updated Aug 07, 2026

Summary

This study looks at why gum disease (gingivitis) develops at different rates in different people. Healthy adults aged 18 to 35 will stop brushing and flossing for 3 weeks to allow mild gum inflammation to develop, then resume normal hygiene to recover. Researchers will take clinical measurements and biological samples to explore genetic and microbial factors behind these differences.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Temporary cessation of all oral hygiene (experimental gingivitis)
What this could lead to: If successful, this could reveal genetic and microbial markers that predict individual susceptibility to gum disease, potentially leading to personalized prevention strategies.
What could go wrong: The study is small (24 participants) and observational, so findings may not apply to the broader population. The 3-week pause in oral hygiene may cause temporary gum inflammation, but this is expected and reversible.

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Conditions

The condition(s) this trial relates to.

Dental Plaque gingival disorder gingivitis mouth disorder periodontal disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

GINGIVITIS ORAL DISEASE

Contacts and locations

Locations

Centre for Host-Microbiome Interactions, Guy's Hospital

London, SE1 9RT, United Kingdom

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